CN102985251B - Embossing unit and embossing method - Google Patents
Embossing unit and embossing method Download PDFInfo
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- CN102985251B CN102985251B CN201180033774.9A CN201180033774A CN102985251B CN 102985251 B CN102985251 B CN 102985251B CN 201180033774 A CN201180033774 A CN 201180033774A CN 102985251 B CN102985251 B CN 102985251B
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- knurling rolls
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- embossing
- mutual alignment
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- 238000004049 embossing Methods 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims description 23
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 230000006870 function Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 230000008859 change Effects 0.000 description 25
- 238000010030 laminating Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 238000003475 lamination Methods 0.000 description 9
- 239000003292 glue Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000001143 conditioned effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 235000021538 Chard Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000007774 anilox coating Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013479 data entry Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0707—Embossing by tools working continuously
- B31F2201/0715—The tools being rollers
- B31F2201/0753—Roller supporting, positioning, driving means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0779—Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0784—Auxiliary operations
- B31F2201/0787—Applying adhesive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Treatment Of Fiber Materials (AREA)
- Credit Cards Or The Like (AREA)
- Paints Or Removers (AREA)
- Paper (AREA)
Abstract
An embossing unit comprising: at least one embossing roller (3, 5), provided with embossing protrusions or recesses (3P; 5P) on a cylindrical surface; - at least one pressure roller (7; 9) coated with an elastically yielding material (7E; 9E) and cooperating with the embossing roller (3; 5); at least one actuator (15; 17) that presses the pressure roller and the embossing roller against each other; an automatic position adjustment system (37, 39), to adjust the reciprocal position of the pressure roller (7; 9) and the emboss not ing roller (3; 5).
Description
Technical field
The present invention relates to the machine for changing continuous print web.Especially, the present invention relates to the improvement of the so-called embossing units for treatment paper or other material (being cellulosic material especially).The invention still further relates to embossing method.
Background technology
In treatment paper or the sheet material of similar material or the field of web, term embossing refers to the process of the permanent deformation of web, and this produces the possess skills rising zone of function or Aesthetic Function or dual technical functionality and Aesthetic Function or the generation of projection.
Such as, in the process of so-called " cotton paper " for the production of paper for kitchen, toilet paper, paper handkerchief and napkin or other similar articles, embossing is for decorating cellulose web, and give this material special technical characteristic, such as, be greater than the remarkable thickness of the basic thickness starting synusia, larger flexibility and absorbability or other characteristic.Embossing, also for generation of projection, this projection applies glue, and this glue is used for two or more synusia to be bonded together to form multilayer tablet web.
Embossing units has at least one knurling rolls be such as made up of steel or other fully hard material usually, the cylindrical surface of these at least one knurling rolls exists projection or depression, and this projection or depression depend on the embossed designs of wishing the material be processed.Knurling rolls cooperate with pressure roll, and this pressure roll scribbles and typically is natural or elastomeric elastic buckling material.Pressure roll pressure makes at least part of the penetrating in the elastic buckling thickness of overburden pressure roller of the projection of knurling rolls on the embossing rollers, or in the depression that elastic buckling material is penetrated on the surface of knurling rolls.The web be processed is supplied to by the embossing roll gap between knurling rolls and pressure roll and stands the permanent deformation that caused by pressure there, by this pressure, two roll-ins is being gone up each other.This process produces permanent deformation in web, forms some possibility portion fractures of the cellulose fibre of plies of paper.
Some embossing units have multiple knurling rolls and multiple pressure roll to process multiple synusia simultaneously, and then the plurality of synusia is connected, such as, by gummed, by glue being applied at least some of the projection produced by embossing.In other embodiments, bond and to be implemented by mechanical adhesion.Typically, two or more synusia separated ground embossing between corresponding knurling rolls and corresponding pressure roll; Then the synusia of embossing is laminated discretely, and namely they are supplied to the lamination roll gap by being formed between two rolls, and these two roll-ins are going up to apply cohesive pressure each other.These rollers can be identical knurling rolls or knurling rolls and laminating roll, or another kind of roller.In some cases, the synusia of embossing and the synusia of non-embossing can be bonded in a similar fashion.
When embossing units comprise by lamination be used for the device that two or more synusia are bonded together time, it is also referred to as bossing-laminating units.In this manual and in the following claims, term embossing units totally refers to any machine, equipment, device, assembly or unit, described any machine, equipment, device, assembly or unit comprise at least one knurling rolls and at least one pressure roll, and also can comprise other knurling rolls, laminating roll, pressure roll etc., and other annex, device, equipment or other, other annex described, device, equipment or other intention perform operation in addition on the synusia being fed into machine, such as glue together, micro-embossed, print, lamination, mechanical bond (synusia bonding) and other.The example of such bossing-laminating units is at US-A-2010/0000687(WO-A-2008/105016) in be described.
Pressure roll usually by piston cylinder actuator pressure on the embossing rollers.Applying pressure is between two rolls depended in process due to web substantially, and therefore depend on the degree of the elastic deformation that this layer of elastic buckling coating on pressure roll stands, be therefore necessary the device that the mutual pressure regulated between pressure roll and knurling rolls is provided.Traditionally, this is implemented by adjustable bearing, and the arm being pivotally connected to the structure of this unit is pressed on this bearing, and piston cylinder actuator is connected to this bearing, and bearing pressure roller.By regulating the position of bearing, the mutual alignment of pressure roll and knurling rolls can be regulated and the therefore pressure of a roller on another roller, and therefore regulate the deformation extent of embossed web and therefore regulate the final result of embossing operation.
When duty changes, be necessary the mutual alignment regulating knurling rolls and pressure roll.Such as, when the characteristic changing of the web that will be processed, when knurling rolls are replaced and embossed designs changes, when hope changes the characteristic of final products, or due to other reason, this may occur.In traditional machine, the mutual alignment of roller and therefore their this adjustments of mutual pressure of applying or adjustment need to close this machine, operator is close to adjustable bearing, and manual adjustments bearing is to move to diverse location by it, this diverse location corresponds to the new position of pressure roll relative to knurling rolls, and therefore corresponds to the particular value that pressure roll applies pressure on the embossing rollers.These operations are time-consuming and sizable production loss that machine stoppage can be caused to cause.On the other hand, safety regulation does not allow the adjustment not stopping machine in advance.
DE-A-102006036050 describes a kind of print unit, and this print unit comprises at least two rollers being pressed in and going up each other, and between these at least two rollers, supply will by the web substrate printed.One of two rollers associates with piezo-activator.Piezo-activator is arranged to and makes to maintain the constant contact between two rollers.
Summary of the invention
According to an aspect, the object of the invention is completely or partially to solve in foregoing problems one or more.The object of particularly advantageous embodiment of the present invention simplifies and accelerates embossing pressure regulating operation, and need not stop the process of embossing units and time-out web.
Substantially, according to possibility embodiment of the present invention, provide a kind of embossing units, this embossing units comprises: at least one knurling rolls, and at least one knurling rolls described are provided with embossing projection or depression on cylindrical surface; At least one pressure roll, at least one pressure roll described scribbles elastic buckling material and cooperates with described knurling rolls; At least one actuator, at least one actuator described makes described pressure roll and described knurling rolls be pressed in go up each other.Positioning system is also set to regulate the mutual alignment of pressure roll and knurling rolls.This makes the adjustment of the mutual alignment of knurling rolls and pressure roll, calibration and setting to be performed and does not need to interfere the mechanical part of machine.This makes these operations can more simply, sooner and be more safely performed.
According to some embodiments of the present invention, automatic regulating system comprises at least one position detector, and this at least one position detector is used for the mutual alignment of detected pressures roller and knurling rolls.Detector can be a part for the control system with control loop, and actuator quilt is according to the position control detected by position detector thus.
Although pressure roll can be kept in fixed position on the support structure in principle, and knurling rolls can be moveable relative to that structure, but detector preferably associates with pressure roll, this pressure roll is mounted to have the axis relative to fixed structure movement; Knurling rolls are mounted to be had relative to the fixing axis of described structure.Or rather, knurling rolls are usually mounted to regulate the position of its axis and just block it once the position reaching hope, and then, this axis keeps fixing during the operation of embossing units.Actuator by pressure roll pressure on the embossing rollers and position detector directly or indirectly detected pressures roller relative to the position of knurling rolls.The position of pressure roll is kept to fix and to move knurling rolls by actuator not recommended, particularly when embossing units comprises multiple knurling rolls, the plurality of knurling rolls need to maintain the mutual alignment of explication, such as the formation of the end of the synusia of embossing to the bonding of end (tip-to-tip) or nested (nested) time.In this case, importantly, keep the position of the axis of knurling rolls to fix, change the position of pressure roll in the case of necessary.When simple embossing units, namely unit has only knurling rolls and only a pressure roll, or several embossing and pressure roll not to be fixed in the mutual alignment of restriction, principle can change the position of knurling rolls, keep the axis of pressure roll to fix relative to fixing supporting structure simultaneously.But, also in this case, preferably, keep the axis of knurling rolls to fix, because this roller is motorized usually, and make pressure roll be moved by embossed roller strap and roll.Therefore, the axis of mobile driven voller instead of the axis of motorized rollers is easier to.
In particularly advantageous embodiments more of the present invention, automatic regulating system comprises at least one control loop, and its middle controller produces the control signal for actuator according to the position signalling detected by position detector with for the desired value of the mutual alignment of pressure roll and knurling rolls.Control loop makes it possible to the position being maintained pressure roll by effect on the actuator, and this actuator makes pressure roll pressure on the embossing rollers.The mutual alignment of pressure roll and knurling rolls, and the pressure therefore between two rollers, can be maintained and not need mechanical support.By eliminating bearing and their corresponding mechanical control system, this makes it possible to simplify machine construction.
Any change of the mode of operation caused due to disturbance factor by compensation, the duty making it possible to maintain embossing units relative to the control loop of the position of knurling rolls for pressure roll is constant or substantially constant.Term ' substantially constant ' means the position that can vibrate in the value of certain limit near ideal position.This scope can be larger or less according to the requirement to precision, and also can change along with machine operator conditions and change, such as, when processed material changes.Some materials can tolerate the relatively large deviation of the mutual alignment of roller.
Term ' substantially constant ' therefore must refer to a kind of position, and this position changes to ensure final result fully constant the expection object for specific embossed product in fully little scope.
May there is various disturbing factor, these disturbing factors can change the mutual alignment between roller, that is, the degree in the embossed depression that the projection of knurling rolls penetrates in elastic buckling layer or elastic buckling material penetrates on knurling rolls.Such as, during operation, the temperature of roller may change, and causes the elastic modelling quantity of the elastic buckling coating of pressure roll or the therefore change of other physical property.Automatic regulating system make it possible to by prevent elastic buckling material softening cause roller larger penetrate mutually (and the less distance therefore between rotation) and compensate these changes, or at least this system makes it possible to reduce this change.Due to such factor roll axis between the change of distance, if be not repaired, the respective change of the characteristic of final products can be caused.In fact, the distance changed between roller changes the embossing degree of depth and therefore changes the size of the embossing projection produced in the synusia of web.By control device according to the present invention, avoid or reduce this phenomenon, increasing the final mass of product, eliminate due to such as thermal change and the fluctuation of the characteristic of the embossing of the therefore change of the elastic modelling quantity of coating material.Be used for controlling nip pressure, the system of pressure namely between two rollers will not allow to realize this effect, that is, it can not compensate the knurling rolls such as caused due to the rigidity of the reduction of the surrender coating of temperature increase and project into penetrating more greatly in the elastic buckling coating of pressure roll.
By device according to the present invention, any change of the thickness of web also can be compensated.
When pressure roll by two be separated control loops by two ends two independently actuator is controlled time, the change in the thickness of the web of the horizontal direction along web can also be compensated.
Position detector also makes it possible to detected pressures roller to be changed relative to the abnormality of the position of knurling rolls.This abnormality change can be the fracture due to such as just processed web.If web break, then it can to accumulate in embossing roll gap or it can reel knurling rolls or pressure roll.In conventional machines, do not detect this state and mechanical part stands excessive stress because this gathers.
In embossing units according to the present invention, such state can be detected by control and regulating system, and this control and regulating system can produce alarm signal and/or stop the signal of embossing units.The other advantage using pneumatic piston-cylinder actuator to provide is, in the such abnormal conditions gathered such as due to the web of the knurling rolls that reel, pneumatic piston-cylinder actuator works as spring, makes this system can elastic buckling.Like this, even if before dyskinesis is detected by position sensor, this elasticity of the piston cylinder actuator also caused by the compression of the gas (being generally air) in cylinder chamber receives surrender protection embossing device from overstress.
Preferably, each roller needing to change for position, such as be each pressure roll, arrange two actuators, each actuator is preferably equipped with detector and is advantageously equipped with control loop, controls an actuator independently with relative another.As will be illustrated below, it is parallel that this also makes it possible to maintain during operation between knurling rolls and pressure roll.
In the embodiment that some are favourable, control unit and user interface are set, be used for setting operation parameter by described user interface, described operating parameter comprises at least one parameter, and this at least one parameter is the function of the mutual alignment between described pressure roll and described knurling rolls.This also allows operator change procedure parameter immediately and need not close embossing units.Such as, during operation can according to leave result that the product of embossing units obtains and make knurling rolls and pressure roll mutually closer to or move more far away.When conventional machines, the operation of this character is impossible.In these conventional machines, machinery requirement is closed and determines that the position of the mechanical support of the mutual alignment of roller is conditioned.In some cases, be necessary to intervene more than once to realize the result of wishing, cause long machine idle time and the loss of production.All these are avoided by the system described in the present invention.
In addition, a series of procedure parameters about different product can be stored.Its machine entered can not need to close or long data entry operation to be switched to the product of another kind of type from a kind of type products rapidly from the parameter of these series of memory search by operator.
According on the other hand, the invention still further relates to a kind of method being used in the embossing units of Types Below embossing web, this embossing units comprises: at least one knurling rolls, and at least one knurling rolls described are provided with embossing projection or depression on cylindrical surface; Pressure roll, described pressure roll to be covered by elastic buckling material and to cooperate with described knurling rolls; And actuator, described actuator makes described pressure roll and described knurling rolls be pressed in go up each other.According to the present invention, be arranged to the mutual alignment automatically regulating described pressure roll and described knurling rolls.
In some advantageous embodiments, be arranged in be pressed in and go up each other supply web between described knurling rolls and described pressure roll; Detect the mutual alignment of described pressure roll and described knurling rolls; Produce control signal to be maintained near preset value described mutual alignment.
In certain embodiments, be arranged in the mutual alignment detecting described pressure roll and described knurling rolls near the relative axial end portion of two of described roller, and produce two control signals, with the actuator be separated by two, the mutual alignment of described pressure roll and described knurling rolls is maintained near described preset value.
Set forth in the following claims according to the other favorable characteristics of embossing units of the present invention and embossing method and embodiment, claims form part of the present invention.
More generally, the present invention relates to a kind of method being used for controlling the mutual alignment being pressed in two rollers gone up each other, a mutual alignment relative to another of wherein said roller is detected and control loop provides actuator, described two rollers push away and are going up each other by this actuator, are corrected any change of the mutual alignment detected relative to desired location of described two rollers by controling parameters.
Accompanying drawing explanation
To understand the present invention better by description below and accompanying drawing, accompanying drawing illustrates non-limiting practical embodiment of the present invention.More particularly, in the accompanying drawings:
Fig. 1 illustrates the schematic side elevation according to embossing units of the present invention; And
Fig. 2 illustrates the function chard of the position regulating system in pressure roll.
Detailed description of the invention
Be applied to complicated embossing laminated units by describing the present invention below, this embossing laminated units has two knurling rolls and two pressure rolls, and a laminating roll.But it must be understood that, the present invention also can advantageously implement in the embossing units of better simply or other type.Such as, advantage also can come from and applies the present invention to simple embossing machine, and this embossing machine has only knurling rolls and a pressure roll.
With reference to figure 1, in a possibility embodiment, comprise the first knurling rolls 3 and the second knurling rolls 5 with the embossing units of 1 instruction generally, these first knurling rolls 3 and the second knurling rolls 5 cooperate with the first pressure roll 7 and the second pressure roll 9 respectively.Each knurling rolls 3,5 has multiple projection 3P, 5P on its cylindrical surface, and each pressure roll 7,9 comprises the cylindrical surface scribbling one deck elastic buckling material 7E and 9E.In the exemplary embodiment shown, knurling rolls 3 and 5 are arranged on fixed support structure 2 with substantially fixing rotation 3A and 5A.Conversely, pressure roll 7 and 9 is mounted with adjustable rotation 7A and 9A and the distance between each knurling rolls 3,5 and pressure roll 7,9 of correspondence can be changed.Regulate the distance between every pair of rolls 3,7 and the roller of roller 5,9 change this layer of elastic buckling coating 7E, 9E on each pressure roll 7,9 due to be pressed in corresponding knurling rolls projection 3P, 5P is upper and the amount of the elastic deformation stood.
Preferably, the adjustment of the distance between the roller of every a pair for two concerning be independently, although in some cases, single adjustment can may be all provided for two pair rollers 3,7 and 5,9, such as when must be identical by two synusia V1 and V2 of the web of embossing individually in the embossing roll gap between roller 3,7 and 5,9, and when needing to stand identical process.
In secondary advantageous embodiment, may regulating of the distance only between a pair in two pair rollers 3,7 and 5,9 can be set.Below by the method for the regulation and control of the mutual alignment between detailed description knurling rolls 3,5 and the pressure roll 7,9 of correspondence.
In the example illustrated, knurling rolls 3 associate with the gluer indicated with 4 generally, and this gluer comprises smears roller 4A, and this is smeared roller and receives glue from smoothing roller 4B, and this anilox roll obtains glue from glue container 4C.Glue is applied at least some in projection, and these protrude through and are being supplied to embossing formation on the synusia V1 by the web of the embossing roll gap between knurling rolls 3 and pressure roll 7.
Lamination roll gap 6 is there is between two knurling rolls 3 and 5, wherein in certain embodiments and/or in some operator scheme, embossing and the synusia V1 of gluing and the second synusia V2 is laminated together, this second synusia is supplied to by the embossing roll gap between knurling rolls 5 and pressure roll 9.The mutual Angle Position of these rollers of Distance geometry between knurling rolls 3 and 5 can be conditioned so that the mutual correspondence between at least some obtaining at least some of the projection 3P of knurling rolls 3 and the projection 5P of knurling rolls 5 in lamination roll gap 6 and the pressure between mutually corresponding projection.In this case, due to the mutual correspondence of roller 3 and 5 projection between compression and the effect of lamination, two synusia V1 and V2 are bonded together to end (tip-to-tip) technology according to so-called end.
In certain embodiments, there is laminating roll 10 in the downstream of lamination roll gap 6, and in the example illustrated, this laminating roll associates with knurling rolls 3.Laminating roll 10 is supported by arm 12, and this arm is hinged to fixed structure 2 around axis 12A.Laminating roll 10 forms second layer press nip 14 together with knurling rolls 5, when knurling rolls 3 and 5 be adjusted in lamination roll gap 6, between projection 3P and 5P, there is no mutual pressure time, according to the technology that " nested (nested) " well known by persons skilled in the art bonds, in this second layer press nip, lamination can be performed between synusia V1 and V2.Reference numeral 16 indicator pistons-gas cylinder actuators, laminating roll 10 pushes away on knurling rolls 3 by this piston cylinder actuator.In fact, the same with for pressure roll 7 and 9, roller 10 is pushed away on knurling rolls 3 by two piston cylinder actuator 16, and these two piston cylinder actuator are placed on two ends of laminating roll 10 and cooperate with two arms 12.
In the example illustrated, each pressure roll 7,9 is supported by a pair arm, and the only arm in this pair arm is visible in FIG, and for two pressure rolls 7 and 9 respectively with 11 and 13 instructions.Arm 11,13 is hinged to fixed structure 2 at 11A and 13A place, and they can be rotated or pivot axis 11B, 13B pivotable or rotation around corresponding, and axis 11B, 13B are arranged essentially parallel to axis 3A, 5A and 7A, the 9A of roller 3,5,7 and 9.The Angle Position of each arm 11,13 is detected by position detector, and the pin that this position detector can such as be supported on it with corresponding arm associates with detection angle position.In other embodiments, detector can be arranged to and make the position of another point reading corresponding arm 11,13.In principle, single detector can be set for each roller 7,9, but owing to will illustrate below, preferably, for each supporting two arms 11,11 and 13,13 of each pressure roll 7,9 provides a detector.
In the example illustrated, each arm 11,13 associates with at least one piston cylinder actuator 15,17.Preferably, for each end of each pressure roll 7,9 arranges piston actuater 15,17 to obtain along the whole axial length of roller the most uniform possible between pressure roll and knurling rolls pressure.Substitute the piston cylinder actuator (being preferably pneumatic) as shown in figure, electric actuator can be used, such as, linear motor, or there is the gear motor of rack-and-pinion mechanism, other actuator any that machinery or hydraulic jack maybe can be conditioned by such as control loop described below.Usually, therefore roller moves to enough strong in the position of hope to apply sufficient power with transfer arm 11,13 by the one or more actuators associated with pressure roll.The position of arm 11,13 is set so that the embossing roll gap formed at the pressure roll 7,9 by each knurling rolls 3,5 and correspondence obtains certain distortion of this layer of elastic shrinkage coating 7E on corresponding pressure roll 7,9,9E, and therefore obtains projection 3P, 5P and necessarily penetrating mutually between elastic coating 7E, 9E.
For arm 11(or each arm 11 for roller 7) with 19 and for each arm 13 of arm 13(or roller 9) comprising encoder in the exemplified embodiment with the position detectors of 21 schematic instructions, this encoder detects the position of bar 15S, 17S of corresponding piston cylinder actuator 15,17.Can arrange the single loop of the position for controlled pressure roller 7 or 9, this single loop can the only signal of of example Tathagata in position detector, or the combination of two signals.But, preferably, be each detector, and therefore for each actuator 15,17 of each pressure roll 7,9 arranges the independently control loop of separation.
In the embossing of some types, importantly, set certain deformation extent of the web through embossing roll gap, and therefore set certain mutual alignment of knurling rolls and pressure roll.In the example illustrated, this is implemented by the effect of the combination of position detector 19 or 21 and actuator 15 or 17.In fact, certain mutual alignment of knurling rolls 3 or 5 and pressure roll 7 or 9 corresponds to certain embossing degree of depth of web, and therefore corresponds to the pass the certain position of the pressure roll 7 or 9 that corresponding detector 19 or 21 can directly or indirectly detect.If for each pressure roll is provided with two detectors associated with two of the end being placed on pressure roll support arms, then any change between the position that two ends that can control and be corrected in roller detect.
Embossing units 1 or its process line of being inserted in wherein advantageously comprise PCCU programmable center control unit, by this PCCU programmable center control unit can be two to 3,7 and 5,9 a pair and/or knurling rolls that another is right and pressure roll set certain mutual alignment.The central control unit schematically indicated with 30 is in FIG connected to the position detector 19 and/or 21 of corresponding pressure roll 7,9, and is connected to corresponding actuator 15 and/or 17.Therefore, use generally with the interface of 32 instructions, operator can certain mutual alignment of setting pressure roller and knurling rolls.In certain embodiments, can be arranged in one group or sequence of maneuvers parameter storing in the 34 memory supporters schematically indicated for embossing units 1, this operating parameter comprises at least one data, and these at least one data correspond at least one certain position relative to corresponding knurling rolls 3,5 in pressure roll 7,9.Preferably, each group parameter comprises corresponding to the data of each pressure roll 7,9 relative to the mutual alignment of the knurling rolls 3,5 of correspondence.
Embossing units 1 also can advantageously comprise control loop, and this control loop is used for every a pair knurling rolls and pressure roll, or is preferably used for each actuator of associating with every pair of rolls.Fig. 2 schematically shows the functional block diagram for the possible control loop of in the actuator of in two pressure rolls 7,9.Various control loop can be substantially the same.
Comprise controller 37 with the control loop of 35 instructions generally, this controller has input 37A and exports 37B.This receives the input error signal E that produced by comparator 39, the preset value of this comparator more in check distance position of function of mutual alignment between pressure roll and knurling rolls (that is, be) or the actual value Vr of desired value and described in check distance.The output 37B of controller 37 is the command signals for actuator 15 or 17, and controller 37 associates with this actuator.The position of actuator 15,17 is detected by detector (encoder) 19,21, and the actual value Vr of in check distance is provided to comparator 39 by this detector.
When the web N of the certain type formed with two synusia V1 and V2 of certain embossing degree of depth (may be different for two synusia) embossing by bonding is produced in hope, operator sets the phase mutual edge distance (may use the data be stored in the memory 34 of the pre-stored values comprising array or multiple series) of roller 3,7 and 5,9.Pressure roll 7 and 9 is taken to desired location by actuator 15,17, causes the more or less distortion of this layer of elastic buckling coating 7E, 9E, and embossing units 1 starts to process these synusia.
During the process of synusia V1 and V2, due to the control loop associated with two actuators 15,17, above-mentioned control system maintains the phase mutual edge distance of setting.Therefore, tend to change the mutual alignment of pressure roll and knurling rolls, the pilot signal that any disturbance (schematically indicating with " d " in figure shown in figure 2) of the in check system be made up of roller, arm and actuator is produced by controller 37 is compensated.
When actuator 15,17 is hydraulic piston-cylinder actuators, can realize controlling by simple proportioning valve: when change (error E) being detected relative to desired location Vd, according to the change direction of actual position Vr relative to desired location Vd, order this valve to increase or reduce the pressure in the cylinder of piston cylinder actuator.In figure shown in Figure 1, for two pressure rolls, schematically indicate the proportioning valve of the part forming controllers 37 or composition control device 37 with 40.
In other embodiments, controller 37 can be manufactured to obtain adjustment stable more accurately in a more complicated manner.Especially, proportional-plus-integral controller (PI) or proportional-integral derivative controller (PID) can advantageously use in conjunction with electric actuator.
In order to consider the wearing and tearing of this layer of elastic buckling coating 7E on pressure roll 7,9,9E and also consider the wearing and tearing of knurling rolls 3,5 possibly, can using the calibration of suitable interval (as the processed quantity of web and/or the function of quality) executive control system.Such as, by the end inserting thickness meter at the embossing roll gap formed by roller 3,7 or 5,9 right accordingly, this calibration can be performed.Roller 3,7 or 5,9 is made to reach known and (corresponding outside cylindrical surface) the phase mutual edge distance limited by thickness gauge.This position is taken as zero reference value for control system.Calibration is performed to ensure that two rollers 3,7 or 5,9 are arranged to have parallel axis by two end inserting thickness meters at embossing roll gap.
Two ends for each pressure roll 7,9 provides a pair actuator 15 or 17, each actuator associates to the corresponding support arm 11 or 13 for pressure roll, and two control systems of the corresponding control loop 35 with the type shown in Fig. 2 are provided, each actuator 15 or 17 has a control system, obtain a kind of system, this system can maintain the abundant depth of parallelism between roller 3,7 or 5,9 efficiently during the process of web.
Be equal to the regulating system regarding to pressure roll 7 and 9 description and also can be arranged for laminating roll 10, although not too important, this is due in second layer press nip 14, synusia is usually only bonded and not embossed, and does not therefore usually need the specific mutual alignment between regulation and control laminating roll 10 and knurling rolls 3.But, perform in the embossing of web N or the situation of embossing again in second layer press nip 14 in hope, the system of the mutual alignment for regulation and control roller 3 and 10 can be advantageously also provided.
Should be appreciated that accompanying drawing only illustrates the example provided by actual arrangement of the present invention, this example can be set up change in form and cloth and not depart from the scope of design of the present invention.Any Reference numeral in claims is provided for the reading of the claim being conducive to reference description and accompanying drawing, and does not limit the protection domain of claim representative.
Claims (19)
1. an embossing units, described embossing units comprises:
At least one knurling rolls, at least one knurling rolls described are provided with embossing projection or depression on cylindrical surface;
At least one pressure roll, at least one pressure roll described scribbles elastic buckling material and cooperates with described knurling rolls;
At least one actuator, at least one actuator described makes described pressure roll and described knurling rolls be pressed in go up each other;
It is characterized in that the positioning system of the mutual alignment for regulating described pressure roll and described knurling rolls; Wherein said positioning system comprises at least one position detector, and at least one position detector described is for detecting the mutual alignment of at least one pressure roll described and at least one knurling rolls described; And at least one actuator wherein said is controlled according to the position detected by least one position detector described.
2. embossing units according to claim 1, is characterized in that, described actuator is pneumatic actuator.
3. embossing units according to claim 1, it is characterized in that, at least one position detector described associates with described pressure roll, and described pressure roll is mounted to have relative to the moveable axis of a fixed structure, and described knurling rolls are mounted to have relative to the fixing axis of described fixed structure; Described pressure roll pushes away on described knurling rolls by least one actuator described; And at least one position detector described directly or indirectly detects the position of described pressure roll relative to described knurling rolls.
4. embossing units according to claim 2, it is characterized in that, at least one position detector described associates with described pressure roll, and described pressure roll is mounted to have relative to the moveable axis of a fixed structure, and described knurling rolls are mounted to have relative to the fixing axis of described fixed structure; Described pressure roll pushes away on described knurling rolls by least one actuator described; And at least one position detector described directly or indirectly detects the position of described pressure roll relative to described knurling rolls.
5. embossing units according to claim 1, it is characterized in that, described positioning system comprises at least one control loop, its middle controller, according to the mutual alignment between the described pressure roll detected by least one position detector described and described knurling rolls and the error between the mutual alignment of the hope between described pressure roll and described knurling rolls, produces the control signal being used at least one actuator described.
6. embossing units as claimed in one of claims 2-4, it is characterized in that, described positioning system comprises at least one control loop, its middle controller, according to the mutual alignment between the described pressure roll detected by least one position detector described and described knurling rolls and the error between the mutual alignment of the hope between described pressure roll and described knurling rolls, produces the control signal being used at least one actuator described.
7. embossing units according to claim 5, is characterized in that, described controller is selected from the group comprising the following: proportional controller, proportional-plus-integral controller, proportional-integral derivative controller.
8. according to the embossing units of any one in claim 1-5, it is characterized in that, at least one actuator described is piston cylinder actuator.
9. embossing units according to claim 8, is characterized in that, described piston cylinder actuator is combined with proportioning valve, and described proportioning valve is used for the pressure of the fluid regulated in described piston cylinder actuator.
10. embossing units according to claim 8, is characterized in that, at least one position detector described is disposed to the position of the bar detecting described piston cylinder actuator.
11., according to the embossing units of any one in claim 1-5, is characterized in that, it comprises two actuators at least one pressure roll described and two position detectors.
12. embossing units according to claim 11, is characterized in that, control loop is with each position detector and associate with each actuator, and described control loop controls described two actuators independently of one another.
13. according to the embossing units of any one in claim 1-5, it is characterized in that, control unit and user interface, be used for setting operation parameter by described user interface, and described operating parameter comprises at least one parameter of the function being mutual alignment between described pressure roll and described knurling rolls.
14. embossing units according to claim 13, it is characterized in that memory associates with described control unit, the data of the multiple modes of operation about described embossing units can be stored in which memory, user can select described data by described user interface, the feature of each mode of operation is at least one parameter, and at least one parameter described is the function of the mutual alignment between described pressure roll and described knurling rolls.
15. according to the embossing units of any one in claim 1-5, it is characterized in that, it comprises the multiple pressure rolls cooperated with at least one knurling rolls described, each of described pressure roll associates with corresponding positioning system, is used for regulating the mutual alignment of described pressure roll and described knurling rolls.
16. according to the embossing units of any one in claim 1-5, it is characterized in that, it comprises multiple knurling rolls, each knurling rolls cooperates with at least one pressure roll, each of described pressure roll associates with corresponding positioning system, is used for regulating the mutual alignment of described pressure roll and corresponding knurling rolls.
17. 1 kinds of methods being used in embossing units embossing web, described embossing units comprises: at least one knurling rolls, and at least one knurling rolls described are provided with embossing projection or depression on cylindrical surface; Pressure roll, described pressure roll scribbles elastic buckling material and cooperates with described knurling rolls; And actuator, described actuator makes described pressure roll and described knurling rolls be pressed in go up each other; It is characterized in that: provide positioning system, described positioning system has at least one position detector, and at least one position detector described is used for detecting the mutual alignment of at least one pressure roll described and at least one knurling rolls described; With at least one actuator according to the position control detected by least one position detector described, automatically to regulate the mutual alignment of described pressure roll and described knurling rolls.
18. methods according to claim 17, is characterized in that: be pressed in go up each other supply described web between described knurling rolls and described pressure roll; Detect the mutual alignment of described pressure roll and described knurling rolls; Produce control signal to be maintained near preset value described mutual alignment.
19. methods according to claim 18, it is characterized in that, near the axial end portion that described pressure roll is relative with two of knurling rolls, detect the mutual alignment of described pressure roll and described knurling rolls, and produce two control signals to be maintained near described preset value the mutual alignment of described pressure roll and described knurling rolls by the actuator of two separation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITFI2010A000116 | 2010-05-25 | ||
| ITFI2010A000116A IT1400201B1 (en) | 2010-05-25 | 2010-05-25 | EMBOSSING GROUP AND EMBOSSING METHOD. |
| PCT/IT2011/000167 WO2011148403A2 (en) | 2010-05-25 | 2011-05-20 | Embossing unit and embossing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102985251A CN102985251A (en) | 2013-03-20 |
| CN102985251B true CN102985251B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180033774.9A Active CN102985251B (en) | 2010-05-25 | 2011-05-20 | Embossing unit and embossing method |
Country Status (7)
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|---|---|
| US (1) | US20130099417A1 (en) |
| EP (1) | EP2576200B1 (en) |
| CN (1) | CN102985251B (en) |
| BR (1) | BR112012029922B1 (en) |
| ES (1) | ES2533432T3 (en) |
| IT (1) | IT1400201B1 (en) |
| WO (1) | WO2011148403A2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101382A (en) * | 2012-12-29 | 2013-05-15 | 江苏谦胜合成材料有限公司 | Embossing device of embossing machine |
| CN104553083A (en) * | 2013-10-18 | 2015-04-29 | 上海东冠纸业有限公司 | Novel toilet paper rewinding machine edge knurling device |
| CN104553084A (en) * | 2015-01-21 | 2015-04-29 | 吴兆广 | Knurling or calendering device used for box pulling machine and knurling or calendering method thereof |
| ITUA20162030A1 (en) * | 2016-03-25 | 2017-09-25 | Perini Fabio Spa | WAREHOUSE FOR EMBOSSERS AND EMBEDDING DEVICE INCLUDING THE WAREHOUSE |
| CN107310204A (en) * | 2017-01-19 | 2017-11-03 | 蚌埠市振华包装机械有限责任公司 | A kind of packing board marking press impression device |
| IT201800002624A1 (en) * | 2018-02-13 | 2019-08-13 | Futura Spa | Embosser for paper converting. |
| IT201800002621A1 (en) * | 2018-02-13 | 2019-08-13 | Futura Spa | Embosser for paper converting. |
| BR112020019469A2 (en) * | 2018-04-20 | 2020-12-29 | Bobst Mex Sa | DEVICE FOR DRIVING A STAMPING BLADE, STATION AND STAMPING MACHINE, AND METHOD FOR CONTROLING THE STARTING OF A STAMPING BLADE |
| CN113092269B (en) * | 2021-04-01 | 2024-03-12 | 浙江方圆电气设备检测有限公司 | Pressure deformation testing method for liquid immersion type transformer |
| WO2024134692A1 (en) * | 2022-12-19 | 2024-06-27 | Futura S.P.A. | Embossing unit for processing paper webs |
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| EP0436339A1 (en) * | 1989-12-30 | 1991-07-10 | Neopost Limited | Article feeding |
| EP1184177A2 (en) * | 2000-08-30 | 2002-03-06 | MAN Roland Druckmaschinen AG | Rotary printing machine |
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| WO2008105016A2 (en) * | 2007-02-27 | 2008-09-04 | Fabio Perini S.P.A. | Multi-function embossing unit |
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| US3731620A (en) * | 1971-02-08 | 1973-05-08 | Appleton Mach | Hydraulic means for adjusting embossing cylinders in a rotary embosser |
| US6786144B2 (en) * | 2001-05-30 | 2004-09-07 | New Gencoat, Inc. | Wringer roller system |
| US6863107B2 (en) * | 2001-10-02 | 2005-03-08 | Sca Hygiene Products Gmbh | Device for applying a spot embossing pattern to a web of multi-ply tissue paper |
| FI20045294A (en) * | 2004-08-13 | 2006-02-14 | Avantone Oy | Embossing device with bend-compensated drum |
| JP4641918B2 (en) * | 2005-09-30 | 2011-03-02 | 大日本印刷株式会社 | Embossing device |
| EP1950037A3 (en) * | 2007-01-25 | 2009-12-23 | Komori Corporation | Switch-Over Processing Method And apparatus |
| EP2534709B1 (en) * | 2010-02-08 | 2015-01-14 | Sca Hygiene Products AB | Apparatus and method for treating products |
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2010
- 2010-05-25 IT ITFI2010A000116A patent/IT1400201B1/en active
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2011
- 2011-05-20 ES ES11727328.4T patent/ES2533432T3/en active Active
- 2011-05-20 CN CN201180033774.9A patent/CN102985251B/en active Active
- 2011-05-20 BR BR112012029922-0A patent/BR112012029922B1/en active IP Right Grant
- 2011-05-20 US US13/261,525 patent/US20130099417A1/en not_active Abandoned
- 2011-05-20 WO PCT/IT2011/000167 patent/WO2011148403A2/en active Application Filing
- 2011-05-20 EP EP11727328.4A patent/EP2576200B1/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0436339A1 (en) * | 1989-12-30 | 1991-07-10 | Neopost Limited | Article feeding |
| EP1184177A2 (en) * | 2000-08-30 | 2002-03-06 | MAN Roland Druckmaschinen AG | Rotary printing machine |
| CN101172412A (en) * | 2006-08-02 | 2008-05-07 | 曼.罗兰.德鲁克马辛伦公司 | Roller pressing device |
| WO2008105016A2 (en) * | 2007-02-27 | 2008-09-04 | Fabio Perini S.P.A. | Multi-function embossing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112012029922A2 (en) | 2017-08-08 |
| CN102985251A (en) | 2013-03-20 |
| IT1400201B1 (en) | 2013-05-24 |
| EP2576200A2 (en) | 2013-04-10 |
| WO2011148403A2 (en) | 2011-12-01 |
| US20130099417A1 (en) | 2013-04-25 |
| WO2011148403A3 (en) | 2012-01-19 |
| BR112012029922B1 (en) | 2020-07-14 |
| ES2533432T3 (en) | 2015-04-10 |
| ITFI20100116A1 (en) | 2011-11-26 |
| EP2576200B1 (en) | 2015-02-11 |
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